Abstract:
The invention relates to a micro fluid chip that leads liquids supplied from a plurality of liquid supply ports, respectively, to a minute flow passage, performs mixing and reaction (chemical reaction) of the liquids in the minute flow passage, and obtains a liquid having been processed from a liquid discharge port. A micro fluid chip that leads liquids supplied from a plurality of liquid supply ports, respectively, to a minute flow passage, performs mixing/reaction of the liquids in the minute flow passage, and obtains a liquid having been processed from a liquid discharge port, the micro fluid chip comprising liquid supplies that supply a plurality of flows, which are formed by division of two kinds of liquids, respectively, in an alternate arrangement, and a flow flattening portion provided downstream of the liquid supplies to be configured in flow passage such that liquids alternately arranged are decreased in dimension as they go downstream and increased in dimension in a direction, which intersects the direction of arrangement and a direction of flow, as they go downstream, to be made substantially the same or slightly large in cross sectional area in the direction of flow. According to the invention, liquids of large flow rates can be processed at high speed and an apparatus is not made large in size.
Abstract:
Microfluidic devices capable of efficiently mixing two or more fluid are provided. Two or more microfluidic inlet channels defined in different sheets of material meet at an overlap region in fluid communication with an outlet channel. The channels are defined through the entire thickness of stencil sheets. The overlap region may include an aperture-defining spacer layer, and/or an impedance element, such as a porous membrane, adapted to distribute at least one fluid across the entire width of the outlet channel to promote reliable fluid mixing.
Abstract:
The microreactor is completely integrated and is formed by a semiconductor body having a surface and housing at least one buried channel accessible from the surface of the semiconductor body through two trenches. A heating element extends above the surface over the channel and a resist region extends above the heating element and defines an inlet reservoir and an outlet reservoir. The reservoirs are connected to the trenches and have, in cross-section, a larger area than the trenches. The outlet reservoir has a larger area than the inlet reservoir. A sensing electrode extends above the surface and inside the outlet reservoir.
Abstract:
Microfluidic devices capable of efficiently mixing two or more fluid are provided. Two or more microfluidic inlet channels defined in different sheets of material meet at an overlap region in fluid communication with an outlet channel. The channels are defined through the entire thickness of stencil sheets. The overlap region may include an aperture-defining spacer layer, and/or an impedance element, such as a porous membrane, adapted to distribute at least one fluid across the entire width of the outlet channel to promote reliable fluid mixing.
Abstract:
Die Erfindung betrifft ein Verfahren (100) zum Einstellen eines Druckes in einer mikrofluidischen Vorrichtung. Das Verfahren (100) weist einen Schritt (110) des Bereitstellens eines Schichtstapels aus einem ersten Substrat und einem zweiten Substrat auf. Hierbei ist zwischen dem ersten Substrat und dem zweiten Substrat zumindest eine Kavität angeordnet, in der zumindest ein Druckeinstellmaterialkörper angeordnet ist. Dabei ist zumindest das erste Substrat für Lichtenergie in einem Wellenlängenbereich transparent ausgeführt. Auch weist das Verfahren (100) einen Schritt (120) des Einkoppelns von Lichtenergie in dem Wellenlängenbereich durch das erste Substrat hindurch in den zumindest einen Druckeinstellmaterialkörper innerhalb der zumindest einen Kavität auf, um ein Druckeinstellmaterial des zumindest einen Druckeinstellmaterialkörpers zu aktivieren, um einen Druck in der zumindest einen Kavität unter Verwendung des Druckeinstellmaterials physikochemisch einzustellen.
Abstract:
A method for manufacturing a micro-fluidic device (104) comprises: - providing a semiconductor substrate (900) having a front side and a back side; - providing at least one micro-reactor (105) in said semiconductor substrate (900); - providing one or more micro-fluidic channels (101) in the front side of said semiconductor substrate (900), connected to said at least one micro-reactor (105); - sealing said micro-fluidic channels (101) by bonding of a cover layer (903) to the front side of the semiconductor substrate (900); and - thereafter, from the semiconductor backside, providing at least a partial etch for forming at least one through-substrate trench (100) surrounding said at least one micro-reactor (105) and the one or more micro-fluidic channels (101).
Abstract:
Means for overcoming the problems which the conventional glass microchannel chips have are disclosed. That is, a microchannel chip in which microchannels can be formed at a low cost, and which has a high chemical resistance is disclosed. The microchannel chip is constituted by a substrate made of carbon, which has a channel in its surface; and a cover composed of a glass plate bonded to the substrate. The cover is bonded to the substrate by heating at least a part of the contact surface at which the substrate is in contact with the cover.
Abstract:
Die Erfindung betrifft ein Verfahren zur Erzeugung eines zumindest bereichsweise lichten Zwischenraums (A) zwischen wenigstens einem ersten Element (26) und wenigstens einem zweiten Element (27) eines mikrofluidischen Bauteils (25). Bei dem Verfahren sind die Werkstoffe der Elemente (26,27) zumindest hinsichtlich einer ihrer Eigenschaften unterschiedlich, wobei in einem ersten Verfahrensschritt das erste Element (26) hergestellt und in einem zweiten Verfahrensschritt der Werkstoff des zweiten Elementes (27) dem ersten Element (26) zugeführt wird und wobei in einem dritten Verfahrensschritt das zweite Element (27) zumindest bereichsweise einer Volumenverringerung unterzogen wird, derart, dass der zumindest bereichsweise lichte Zwischenraum (A) entsteht. Dadurch wird ein Verfahren bereitgestellt, bei dem mit vergleichsweise geringem Aufwand zumindest ein Teil einer Mikrostruktur (Mikrospalt, Mikrokanal, Mikrokavität, etc.) herstellbar ist. Die Erfindung betrifft auch ein mikrofluidisches Bauteil (25), welches aufgrund seiner Ausgestaltung besonders gut mit dem erfindungsgemäßen Verfahren herstellbar ist.